FR587471A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvement in devices for loading or unloading multi-storey cages in mine shafts
Assignee: Metallurg D Onnaing SA Des Ets
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Filing: 1924-02-21
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Granted: 1925-04-18
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Expires: 1944-02-21
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 20:45
CPC Classifications
B; B66; B66B; B66B17/00; B66B17/14; B66B17/16; B66B17/20
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